Hernandez » I say this as an Ex-JW who has become Catholic, so people of other convictions--religious and non-religious--are likely to have different views. But I can at least share the Catholic view: In the end, you have the authority and ability to discern for yourself what God is telling you through the pages of the Bible.
Hmmmm. One certainly has the authority to believe what one wishes, but as far as the authority to interpret scriptures, it must be done by revelation through the Holy Spirit. "If any man lacks wisdom, let him ask of God, who giveth to all men liberally and ubraideth not, and it shall be given him." (James 1:5). And Matthew speaks of Jesus' warning regarding blind leaders. Without light, they seek to lead others who are blind, in which case both fall into the pit and perish. (Matthew 15:14)
Catholicism and Orthodoxy both depend on two elements: Scripture and Tradition. If scripture cannot interpret itself, then it falls upon tradition, usually in the way of the early patristic fathers. If these don't do the job, one must seek guidance from God. I would not recommend trying to interpret it yourself.
One problem is Isaiah 52-53, beginning with the last several verses of Isaiah 52. I say that because many Jews interpret the following chapter as the kingdom of Israel. Christians, however, rightfully interpret it as pertaining to the Messiah, his suffering and ministry. Muslims interpret Isaiah 29 as pertaining to the Qur'an, while latter-day saints believe it points to the coming forth of the Book of Mormon.
Another problem is literacy. When Jesus blessed the bread and wine, he said, "This is my body...this is my blood." Catholics see this as literal, while most other Christians see it as metaphor. In a time when miracles had ceased, the church needed something it could point to that was a living miracle, every week. Transubstantiation was just the ticket. It was like the invisible return of Christ in 1914 and the fastest gun in the West ("Wanna see it again?") Great events in our day...they're just invisible. But when Christ said, "Oh, Jerusalem...How oft would I have gathered thee under my feathers," I sincerely doubt he actually had feathers or wings. It was metaphor.
So these are problems with interpreting scripture yourself. Seeking spiritual guidance is the way to go in my view. In the case of the Jehovah's Witnesses, they, being without light, are superlative examples of blind guides leading the blind. The entire Adventist movement is a string of failed prophecies fractioning off into others sects that also experienced failed prophesies.